Well, I found a great video on YouTube of a Deckel and I'd say mine is a direct copy of that design. I read that after WW2, people didn't want German made products, so copies started appearing elsewhere. Mine is an Alexander.
Not sure what ratios i have, the engraving on the scales is very faint and although stored indoors, has a very light coat of rust on them. I cant hardly make out the numbers. It'll clean up easily, just haven't had time yet.I was gonna say, yours looks very similar to mine, with some minor differences. Will yours do 1:1? My biggest gripe with the deckel I have is that it only goes down to 2:1. Well, that, and the collets.